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Welcome to the Physical Layer MCQs Page

Dive deep into the fascinating world of Physical Layer with our comprehensive set of Multiple-Choice Questions (MCQs). This page is dedicated to exploring the fundamental concepts and intricacies of Physical Layer, a crucial aspect of Networking. In this section, you will encounter a diverse range of MCQs that cover various aspects of Physical Layer, from the basic principles to advanced topics. Each question is thoughtfully crafted to challenge your knowledge and deepen your understanding of this critical subcategory within Networking.

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Check out the MCQs below to embark on an enriching journey through Physical Layer. Test your knowledge, expand your horizons, and solidify your grasp on this vital area of Networking.

Note: Each MCQ comes with multiple answer choices. Select the most appropriate option and test your understanding of Physical Layer. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

Physical Layer MCQs | Page 11 of 24

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Q101.
If the bit rate for a 16-QAM signal is 4000 bps, what is the baud rate?

a.

300

b.

400

c.

1000

d.

1200

Discuss
Answer: (c).1000
Q102.
If the baud rate for a 64-QAM signal is 2000, what is the bit rate?

a.

300

b.

400

c.

1000

d.

12000

Discuss
Answer: (d).12000
Q103.
Given an AM radio signal with a bandwidth of 10 KHz and the highest-frequency component at 705 KHz, what is the frequency of the carrier signal?

a.

700 KHz

b.

705 KHz

c.

710 KHz

d.

Cannot be determined from given information

Discuss
Answer: (a).700 KHz
Q104.
_______ conversion is the process of changing one of the characteristics of an analog signal based on the information in the digital data.

a.

Digital-to-analog

b.

Analog-to-analog

c.

Analog-to-digital

d.

Digital-to-digital

Discuss
Answer: (a).Digital-to-analog
Q105.
Which of the following is not a digital-to-analog conversion?

a.

ASK

b.

PSK

c.

FSK

d.

AM

Discuss
Answer: (d).AM
Q106.
In ________, the amplitude of the carrier signal is varied to create signal elements. Both frequency and phase remain constant.

a.

ASK

b.

PSK

c.

FSK

d.

QAM

Discuss
Answer: (a).ASK
Q107.
In _________, the frequency of the carrier signal is varied to represent data. Both peak amplitude and phase remain constant.

a.

ASK

b.

PSK

c.

FSK

d.

QAM

Discuss
Answer: (c).FSK
Q108.
In ________, the phase of the carrier is varied to represent two or more different signal elements. Both peak amplitude and frequency remain constant.

a.

ASK

b.

PSK

c.

FSK

d.

QAM

Discuss
Answer: (b).PSK
Q109.
A constellation diagram shows us the __________ of a signal element, particularly when we are using two carriers (one in-phase and one quadrature).

a.

amplitude and phase

b.

amplitude and frequency

c.

frequency and phase

d.

none of the above

Discuss
Answer: (a).amplitude and phase
Q110.
Quadrature amplitude modulation (QAM) is a combination of ___________.

a.

ASK and FSK

b.

ASK and PSK

c.

PSK and FSK

d.

none of the above

Discuss
Answer: (b).ASK and PSK
Page 11 of 24

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